FIFTY Shade Of Grey star Dakota Johnson treated her fans to a cheeky flash of her underwear in a new online snap.

The 26-year-old – who is the daughter of Oscar nominated actress Melanie Griffith – uploaded a photo to her Instagram account showing her at home reaching for some blinds while sporting only a pair of tight black knickers on her bottom half.

Also visible in the darkly lit shot is the brunette’s slender torso, toned legs and pert bottom.